I think you are assuming all speculation happens in this thread, when in fact this thread is dead in comparison to what happens on Reddit, Twitter and Discord.
Do yourself a non-favor and go view Smash speculation on YouTube or Twitter for a smidge...you know, where they are actively posting media where they proudly hate on other people who love the same game as them because they want a character that they don't? Where people are confused on why they are vilified for simply loving a character and wanting them in the game? Where people remove themselves from speculation because people maul their thread with unjust insults?
Honestly, this thread is only mildly better, but I guess I can give some credit to the staff here for that. They occasionally make sure that people aren't harassed for the character they like and think could be in.
Also you yourself have shown clear examples of this, and this statement is clearly trying to frame the situation as if you haven't been toxic, and isn't subtle about it at all. Like, how many times do people here have to complain about a user who has long-since moved on to greener pastures or use what they assume is a fake leak to insult the intelligence of those who are more open to possibilities than they are? Do you have to attack someone just because the believe in something you don't, or dare to consider it, even if not in any serious capacity? Do you have to keep assuming the stance and character of the other person and attacking that when the only argument you can give is a rehash of the same one given six month ago, some of which already being rendered incorrect or false?
Maybe instead of acting as if there is less toxicity here, you should instead realize that your own actions are toxic and stop trying to put yourself above it. Maybe then you can improve yourself in that regard and be better able to identify toxicity and help put a stop to it. I'm doing it in my own way, which is trying to be less aggressive to how close-minded and oppressive the community tends to be and, rather than getting irritated about it, going back to what I used to do which is giving them openings to be more open-minded and trying to help them be less forceful with their beliefs on others.
It didn't work last time, thus the blatant irritation I sometimes show, but I'm willing to try it again if it makes people more open to reading my posts and discussing the content of them, which will hopefully lead to healthier discussion and more variety.